public void addNextRoadPieceTest()
{
roadPiece roadPiece = new roadPiece();
roadPiece obtToAdd = new roadPiece();
roadPiece obtToAdd2 = new roadPiece();
roadPiece.addNextRoadPiece(obtToAdd);
Assert.AreSame(roadPiece.getNext(), obtToAdd);
roadPiece.addNextRoadPiece(obtToAdd2);
roadPiece ret = roadPiece.getNext();
Assert.IsTrue(ret == obtToAdd || ret == obtToAdd2);
}
public void getNext()
{
// Test the null case
roadPiece roadPiece1 = new roadPiece();
Assert.IsNull(roadPiece1.getNext());
// Test if only one roadPice is connected to this one
roadPiece roadPiece2 = new roadPiece();
roadPiece roadPiece2Child1 = new roadPiece();
roadPiece[] roadPiece2array = new roadPiece[1];
roadPiece2array[0] = roadPiece2Child1;
roadPiece2.NextArray = roadPiece2array;
Assert.AreSame(roadPiece2Child1, roadPiece2.getNext());
// Test with 3 possibilities
roadPiece roadPiece3 = new roadPiece();
roadPiece roadPiece3Child1 = new roadPiece();
roadPiece roadPiece3Child2 = new roadPiece();
roadPiece roadPiece3Child3 = new roadPiece();
roadPiece[] roadPiece3array = new roadPiece[3];
roadPiece3array[0] = roadPiece3Child1;
roadPiece3array[1] = roadPiece3Child2;
roadPiece3array[2] = roadPiece3Child3;
roadPiece3.NextArray = roadPiece3array;
roadPiece next = roadPiece3.getNext();
if (next != roadPiece3Child1 && next != roadPiece3Child2 && next != roadPiece3Child3)
{
Assert.Fail();
}
}